hexachord

Noun

 * 1)  A series of six tones denoted with the syllables ut-re-mi-fa-sol-la separated by seconds, the only of which that is a minor second being mi-fa.

Usage notes

 * The above definition dates back to the theory of Guido of Arezzo (11th century)

Derived terms

 * hexachord
 * hexachord
 * hexachord
 * hexachord